A Researcher Selects a Sample of 25 Participants from a Population

question 46

Multiple Choice

A researcher selects a sample of 25 participants from a population with a mean of 10 and a standard deviation of 5.What is the probability of selecting a sample mean equal to at least 12?

• A) less than 1%
• B) greater than 50%
• C) about the same as selecting a sample mean that is at least equal to the population mean
• D) equal to the probability of selecting a sample mean that is at most equal to 8

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Definitions:

Critical Thinking

The ability to analyze facts, generate and organize ideas, defend opinions, make comparisons, draw inferences, evaluate arguments, and solve problems.

Problem-Solving Skills

Abilities or techniques employed to identify, analyze, and resolve issues or challenges effectively.

Assertive Communication

A communication style characterized by confidently expressing one's thoughts, feelings, and needs in a direct, honest, and respectful way.